feat(codex-bridge): hide 9Router combos in Codex, drop the config backup (beta.22)

Combos that come from 9Router, directly or through the gateway's 9router
provider, are no longer added to Codex's model list; the gateway's own combos
keep their plain names. The IDE no longer leaves a config.toml backup behind:
turning the setting off already restores the file byte for byte.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HRDGW1LiKcDUZYUdKBoWYW

apps/desktop/assets/codex-bridge/bridge.py

@@ -26,7 +26,7 @@ from resim_context import resimleri_sadelestir
 import ide_catalog
 import ozet_kopru
 
-SURUM = "2"
+SURUM = "3"
 HERE = os.path.dirname(os.path.abspath(__file__))
 
 # Codex sends request bodies zstd-compressed. Python gained zstd in 3.14; for older